| 摘要 |
A bed coil spring unit comprises a plurality of joined and interconnected spring cell units and a method of manufacturing the same. Each spring cell unit comprises a plurality of coil springs within long legs which long legs are used to form the coil springs. Each spring cell unit has a generally vertical axis. The coil springs which make up each spring cell unit are positioned symmetrically about the central axis. The plurality of coil springs in each spring cell unit conveniently numbers four(4).
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